<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import { ElMessage } from 'element-plus'
//控制注册与登录表单的显示， 默认登录
const isRegister = ref(false)
//定义数据模型
const registerData = ref({
    username:'',
    password:'',
    rePassword:''
})

//校验密码的函数
const checkrePassword =(rule,value,callback)=>{
    if(value==''){
        callback(new Error('请再次确认密码'))
    }else if(value!=registerData.value.password){
        callback(new Error('请确保两次输入的密码一样'))
    }else{
        callback()
    }
}
//定义表单校验规则
const rules={
    username:[
        {required:true,message:'请输入用户名',trigger:'blur'},
        {min: 5,max: 16,message:'长度为5~16位非空字符',trigger:'blur'}
    ],
    password:[
        {required:true,message:'请输入密码',trigger:'blur'},
        {min: 5,max: 16,message:'长度为5~16位非空字符',trigger:'blur'}
    ],
    rePassword:[
        {validator:checkrePassword,trigger:'blur'}
    ]
}

//调用user.js后台接口
import {userRegisterService,userLoginService} from '@/api/user.js'
//注册函数
const register = async()=>{
    //registerData是一个响应式对象，如果要获取值，需要.value
   let result =  await userRegisterService(registerData.value);
 /*   if(result.code==0){
    //成功了
    alert(result.msg? result.msg:'注册成功')
   }else{
    alert('注册失败')
   } */
   //alert(result.msg? result.msg:'注册成功')
   ElMessage.success(result.msg? result.msg:'注册成功')
}
//绑定数据,复用注册表单数据模型
//表单数据校验
//登录函数
import { useTokenStore } from '@/stores/token.js';//导入token状态
import {useRouter} from 'vue-router'
const router = useRouter()
const tokenStore = useTokenStore()////调用useTokenStore得到状态
const login = async()=>{
    //调用接口
    let result =  await userLoginService(registerData.value)
    //if(result.code==1){
    //成功了
    ElMessage.success(result.msg? result.msg:'登录成功')
   //把得到的token存储到pinia中
   tokenStore.setToken(result.data)
   //console.log(tokenStore.token)
   //跳转到首页 路由完成跳转
   router.push('/')
   //}else{
    //alert('登录失败')
  // } 


}

//定义表单，清空数据模型的数据
const clearRegisterData =()=>{
    registerData.value={
        username:'',
        password:'',
        rePassword:''
    }
}
</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">

            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister":model="registerData" :rules="rules">
                <el-form-item>
                    <h1 class="title">注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码"  v-model="registerData.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false;clearRegisterData()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>

            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
                <el-form-item>
                    <h1 class="title">登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true;clearRegisterData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background: url('@/assets/logo2.png') no-repeat left top / 150px auto,
            url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 20px 20px 20px 20px;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>